Title: 하트 스테인 / Heart Stain
Genre: BL, Romance, Youth
Episodes: 8
Broadcast network: Heavenly
Broadcast period: 2025-Feb-06 to 2025-Feb-27
Air time: Thursday 12:00 KST

Woohyun was planning on hiding his crush on his homeroom teacher, but his best friend Doha finds out and confesses for him. Their relationship starts to change, with Woohyun assuming because of his preference for men, but when the two try to clear the air, an interesting situation occurs. Doha asks Woohyun if they want to date, at least until graduation. By the end of the school year, will feelings change between these two best friends?